A ray of light strikes the side of a triangular prism, refract through it and emerges on the other side of the triangle. By the help of a ray diagram and knowledge of geometry determine the refractive index of prism in terms of the refracting angle of the triangle elevation and angle of refraction

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.

The particles that are found in the nucleus of an atom are